Hyperapp: Enhance typescript definitions

[Mytrill]

Several pieces are missing from the typescript definitions:

• [x] proper definition for Thunk (with types for arguments & return type) + example (done in #412)
• [ ] jsx namespace: intrinsic elements + example
• [ ] lifecycle events on VNode + example
• [x] proper definition of module + example
• [x] proper definition of init() + example

If anyone has any other idea, I'll add to this list.

Update: removed HOA, added modules and init.

[pspeter3]

Where would you like to work on this?

[Mytrill]

Thanks for #412!

I will work next on the definition for HOAs + an example.
Hopefully I will have some time tomorrow/Wednesday.

[jorgebucaran]

Bring it on! 🎰 😄

[pspeter3]

I think at this point we can drop HOAs. I also think the JSX typing can be done another time. Init and Modules are more important.